Home / 511,224.80-766,837.20-137,285.60

Finding the Fourth Proportional to 511,224.80, 766,837.20 and 137,285.60

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Solution

The fourth proportional to 511,224.80, 766,837.20 and 137,285.60 is: 205,928.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,224.80 : 766,837.20 = 137,285.60 : x
  2. Step 2: Convert to fraction form
    511,224.80/766,837.20 = 137,285.60/x
  3. Step 3: Cross multiply
    511,224.80x = 766,837.20 × 137,285.60
  4. Step 4: Simplify right side
    511,224.80x = 105,275,705,104.32
  5. Step 5: Solve for x
    x = 105,275,705,104.32/511,224.80
  6. Step 6: Final answer
    x = 205,928.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.